Thanks 53 moneypit,
I simply ran a jumper wire to the heater is it was getting 12.5 volts. Of course not 14v when they motor is running. I guess I will run it for now and rebuild the motor with 12 volt if it burns up.
To answer your earlier question about hoosier pass, yes you were correct. The truck came from berthoud co via boulder. I had it tucked to fairplay and drive it over hoosier pass. It was only the second time driving the truck so I took it easy over the pass . In retrospect it could of been done in third high it you kept it in the onions.
Later in the garage I did a compression test on the motor and it had a range of 115- 125 psi WOT. This was warm at 9700feet. Not bad right what do you think?
Drew